Our Data Sources
121, Old Castle Road, Llanelli has no recent1 records in the Land Registry and a single entry in the EPC database dated March 2026.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 121, Old Castle Road, Llanelli, we estimate a market value of £141,744 and a rental value of £880 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £125,545 and £779 per month respectively.
Plot Size
HM Land Registry records the plot of land for 121, Old Castle Road, Llanelli as measuring 135 m2.
That makes it the 9th largest plot in the postcode, where 36 of the 44 other houses have recorded plot data.
Energy Efficiency
121, Old Castle Road, Llanelli has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 30 Mar 2026.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 121, Old Castle Road, Llanelli completed on 21st February 1997 at £39,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
- Sold Feb 1997£39,000
- Sold Dec 1995£15,000
Similar Properties Sold Nearby
Since 2017 274 properties similar to 121, Old Castle Road, Llanelli have sold within a radius of 590 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 23rd January 2026, was 36, Princess Street, Llanelli, SA15 2TD, a freehold house which sold for £127,000.
Read more about house prices in SA15.
- Sold Jan 2026£127,000 | 3 Bed House36, Princess Street, Llanelli, SA15 2TD36, Princess Street, Llanelli, SA15 2TD
- Sold Nov 2025£122,000 | 3 Bed House27, Brynmor Road, Llanelli, SA15 2TF27, Brynmor Road, Llanelli, SA15 2TF
- Sold Sep 2025£110,000 | 4 Bed House28, Albert Street, Llanelli, SA15 2TA28, Albert Street, Llanelli, SA15 2TA
- Sold Jul 2025£152,500 | 3 Bed House8, Amos Street, Llanelli, SA15 2TU8, Amos Street, Llanelli, SA15 2TU
- Sold Jun 2025£133,000 | 3 Bed House17, Brynmor Road, Llanelli, SA15 2TF17, Brynmor Road, Llanelli, SA15 2TF
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £134,731, ranging from £122,763 to £149,220.
- 119 Old Castle Road
4 Bed House | 5 m | Est. Value: £149,220
- 123 Old Castle Road
3 Bed House | 6 m | Est. Value: £140,355
- 117 Old Castle Road
3 Bed House | 10 m | Est. Value: £122,763
- 125 Old Castle Road
3 Bed House | 11 m | Est. Value: £130,818
- 115 Old Castle Road
3 Bed House | 15 m | Est. Value: £122,763
Location Comparison
Of the 99 addresses on Old Castle Road, Llanelli, SA15, 121, Old Castle Road, Llanelli comes out as the 14th largest and the 40th most expensive in our analysis of the public data.
It is also £55k less expensive than the average property across the SA15 district.
More reading links
Schools Nearby
Public Transport Nearby
- Llanelli|800 m away
- Bynea|4.8 km away
- Pembrey & Burry Port|5.6 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
